Ball-cock.



PATENTED SEPT. 1, 1903.

A. NELsoN. BALL 000K.

APPLICATION FILED JAN. 12, 1903.

N0 MODEL.

d 12C. d

W/ TNESSE S.'

A TTOHNE YS.

atented September 1, 19052;

PATENT OFFICE;

ALBERT NELSON, OF QUINOY, MASSACHUSETTS.

BALL-COCK.

SPECIFICATION forming part of Letters Patent No. 737,95 5, dated September 1, 193L f Application filed January 12, 1903. 'Serial No. 138,716. (No model.)

To @ZZ whom t may concern.-

Beit known that I, ALBERT NELSON, a citizen of the United States, and a resident of Quincy, in the county of Norfolk and State of Massachusetts, have invented a new and Improved Ball-Cock, of which the following isa full, clear, and exact description,

This invention relates' to a ball-cock especially applicable to flush-tanks, but useful also in other connections, as will be apparent to skilled mechanics.

The prime object of the invention is to provide a mechanism which will quickly and with certainty open and close the water-supply, and by thus avoiding a slow-closing movement I attain not only a valve which enables the tank to be quickly filled, but also one which avoids those uncertain movements of the float which occur in many ball-cocks of known construction during the period in which the closing operation takes place. In attaining' this end I provide a pipe and a shell inclosing the same, said parts being relatively movable and the water being supplied to one. The pipe is perforated at two points and has an extension projecting through one end of the shell, to which is connected a float device for imparting the relative movement referred t0. skirt is provided, which, as one of the perforations in the pipe is uncovered by the relative movement of the pipe and shell, acts as a guard to prevent splashing the water as it is discharged.

This specification is an exact description of' two examples of my invention, while the claim defines the actual scope thereof.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in both views.

Figure l is a sectional view of the invention, showing a form in which the shell is movable on the supply-pipe; and Fig'. 2 is a section showing a modiiied form of the invention, in which the shell is stationary.

a indicates the flush-tank, and b indicates the supply-pipe, which, according to the construction shown in Fig. l, passes up through the bottom of the tank and is formed with a series of openin gs b', through which the water is adapted to be discharged into the tank, and

At the other end of the shell a flaringan opening or openings b2, the purpose of which will be fully described hereinafter. In the top of the supply-pipe is rigidly fastened an extension or plug c, having an eye c' at its upper end, through which eye the Heat-lever (l passes and which carries the fulcrum d of the` lever. Two balls or iloats cl2 and Z3 are provided, these being connected to the lever CZ by rods d* and d5, respectively, and said rods being braced apart by a rod d. By these devices, disposed as shown, the main float d2 (when the floats are in lowermost position) is held close to the vertical line of the fulcrum d. Therefore the water rising in the tank will submerge the float (Z2, having no material rising effect thereon during the short leverage. When, however, the water reaches the ioat (Z3, (see Fig. 1,) this float, being outward from the .fulcrum d and ail'ording the necessary leverage, will move upward and in turn swing the float (Z2 outward. As soon as this outward movement of the float d* begins its leverage increases and finally it rises with great rapidity, shutting off the valve, as will be hereinafter described.

e indicates the shell,wl1ich has a lower head e sliding on the supply-pipe l) and iitted with a packing-gasket e2, in the form of a cupleather, which is disposed inwardly with respect to the shell, so that the water-pressure therein will expand and make a tight joint.r

tending upward therefrom is an ear j', through will take place the instant .before the tank is filled to the desired level, thus allowing the shell e to drop instantly by its own Weight and by the pressure of the iioat-lever thereon. By these means the valve is instantly and effectively closed. As the water drops in the tank the balls fall, and thus the shell is raised to open the orifices b', the parts reassuming the position shown in Fig. l. The openings b are exclusively for the discharge of the Water into the tank, and of course when the shell drops it incloses these openings and the supply-pipe b is closed. The opening b2 is for the purpose of allowing the Water from the supply-pipe b to enter the shell at all times, thus equalizing the pressure on. the shell.

It Will be observed in connection With this y valve that there are no seats and that the only parts past which leakage is possible are the heads e and e4 and the shell e. At these points leakage may be effectively prevented by the form of packing employed, and the contact being a sliding contact, such as that of a rod in a packing-gland, it is clear that all leakagemay be avoided.

The construction shown in Fig. 2 differs from that shown in Fig. l only in that the shell e is immovable, it being fastened tothe pipe g, which leads the Water into the tank a. Said pipe g discharges into the shell e, and Within the shell is arranged the supply-pipe h, this pipe taking the place of the pipe b in Fig. l and being provided with openings h and h2, the same as the openings b and b2, before described. The float-lever d, With its tWo balls d2 and d3, before described, is passed loosely through an ear fr, formed on a plug or extension t' of the tube h, and -the shell e has its ear f' arranged to carry the fulcrum d' of the lever d.v Therefore as the lever CZ moves it slides the pipe h instead of the shell; but in other respects the action is precisely the same as that before described.

Various changes in the form, proportions, and minor details of my invention may be resorted to at Will Without departing from the spirit and scope thereof. Hence I consider myself entitled to all such variations as may lie Within the intent of my claim.

Having thus described my invention, I claim as new and desire to secure by Letters Patent'- The combination of a pipe, a shell inclosing the same, said parts being relatively movable, and one of said parts having Water supplied thereto, the pipe being perforatedI at two points and having one end projected loosely through one end of the shell,whereby upon the relative movement of the pipe and shell, one of the perfor-ations is uncovered, a flaring skirt attached to the shell and servingV to in close the un covered perforations to prevent splashing the Water discharged therethrough, the second end of the pipe having an extension projected through the corresponding end of the shell, a lever. having connection with the shell and With .the Vsaid pipe extension, and a. float in connection with the lever.

In testimony .whereof I have signed my name to this specification in the presence of tWo subscribing witnesses.

ALBERT NELSON.

lVitnesses:

JOHN E. ERrcsoN, l. ANDREW WESTERBERG. 

